COTRAN HHWT Co-Extruded Heavy Wall Heat Shrinkable Tubing With Adhesive

COTRAN HHWT co-extruded heavy wall heat shrinkable tubing with hot melting adhesive is made from radiation crosslinked polyolefin. Specifically designed formulation makes the tubing to have outstanding physical, chemical and electrical properties, and also meet the requirement of RoHS and other environment concerned standards. It is designed for applications to seal and protect electrical splices, cable terminations and joints where electrical insulation and water proof are required. 3:1 shrink ratio allows it easily fit over irregular shape and large connectors.

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product introduction

Product Features

3:1 Shrink Ratio
Semi-rigid
UV resistant
RoHS compliant
High electrical insulation
Superior mechanical property
Minimum fully recovery temperature: 120℃

Technical Properties

Property	Unit	Test Method	Requirements
Shrinking properties
Longitudinal Changes	%	ASTM D2671	0 to -10
Eccentricity	%	ASTM D2671	Max. 50
Property of jacket
Tensile strength	MPa	IEC 60684-2	Min. 12
Ultimate elongation	%	IEC 60684-2	Min. 350
Heat aging Tensile strength Ultimate elongation	MPa %	IEC 60684-2 /150ºC,168hrs	Min.12 Min. 350
Low Temperature Flexibility	-	IEC 60684-2/ -30ºC,4hrs	No cracking or break
Dielectric strength	kV/mm	IEC 60684-2	Min. 12
Volume resistance	Ω.cm	IEC 60684-2	Min. 1.0×1012
Water absorption	%	IEC 60684-2/ 23ºC, 336hrs	Max. 0.2
Hardness	Shore D	ISO 868	40-50
UV resistance		ISO 11358 (TGA)	Free carbon black content ≥2.5%
Chemical resistance Tensile strength Ultimate elongation		VDE 0370 Transformer oil 23ºC,7days IEC 60684-2	Min.10 Min. 300
Property of adhesive
Water absorption	%	IEC 60684-2	Max.1.0
Dielectric strength	kV/mm	IEC 60684-2	Min. 10 (2mm thick)
Volume resistance	Ω.cm	IEC 60684-2	Min. 1.0×1010
Softening point	℃	ASTM E 28	110±10℃
Low Temperature Flexibility	-	IEC 60684-2/ -30ºC,4hrs	No cracking or break
Adhesion	N/25mm	IEC 60684-2	Basic material heat-shrinkable-tube to… -Aluminummin. 80 -EPRmin. 44 -PVCmin. 40 -PEmin. 100

Note: Technical information provided consists of typical product dates and should not be used for specification purposes

Specification

Size (Inch)	Item No.	Assupplied (mm)	After recovered (mm)			Standard Length (mm)
Size (Inch)	Item No.	D*(Min.)	d*(Max.)	w1*(Min.)	w2*(Min.)	Standard Length (mm)
3/8	HHWT9/3	9	3.0	2.0	0.2	1000-1500
5/8	HHWT16/5	16	5.0	2.4	0.6	1000-1500
7/8	HHWT22/6	22	6.0	2.7	0.7	1000-1500
1-1/3	HHWT 33/8	33	8.0	3.2	0.7	1000-1500
1-1/2	HHWT40/12	40	12.0	4.0	0.7	1000-1500
2-1/6	HHWT55/16	55	16.0	4.0	0.7	1000-1500
2-1/2	HHWT65/19	65	19.0	4.0	1.0	1000-1500
3	HHWT75/22	75	22.0	4.0	1.0	1000-1500
3-3/4	HHWT95/25	95	25.0	4.2	1.1	1000-1500
4	HHWT105/25	105	25.0	4.2	1.2	1000-1500
4-1/2	HHWT115/34	115	34.0	4.2	1.2	1000-1500
5	HHWT130/36	130	36.0	4.2	1.2	1000-1500

D* = Inner diameter as supplied

d* = Inner diameter after fully recovered without adhesive w1*= Outer jacket layer wall thickness after fully recovered

w2*= Inner hot melting adhesive layer wall thickness after fully recovered The Standard colors for the tubing shall be black.

Shelf life andstorage

COTRAN HHWT co-extruded heavy wall heat shrinkable tubing with hot melting adhesive has 5 year's shelf life from date of manufacture when stored in a humidity controlled storage (-10 °C to 40 °C and <75% relative humidity).

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Subject : COTRAN HHWT Co-Extruded Heavy Wall Heat Shrinkable Tubing With Adhesive

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